Tidy Number Strategy

Walt: we are learning to use the making 10s/tidy number strategy 

8+5=13

8+2=10

10+3=13

5+9=14

9+1=10

10+4=14

I liked doing this because it was easy. 

Do you have any  Number bonds?

Number Bonds

Walt we are learning Number bonds to 10,20,50 and 100

Number bonds to 10	Number bonds to 20	Number bonds to 50	Number bonds to 100
9+1=10	17+3=20	3+47=50	5+95=100
7+3=10	19+1=20	45+5=50	10+90=100
4+6=10	18+2=20	1+49=50	99+1=100

Number  bonds are  easy for me because it's just adding

Can you think of a  number bond?